Pipe cutter and threader



f UNITED STATES PATENT OFFICE.

JOSEPl-I'J. ODONOHUE, on BALTIMORE, MARYLAND.

PIPE CUTTER AND TH READER.

SPECIFICATION forming part of Letters Patent No. 547,615, dated October 8,1895.

Application filed March 23, 1895.

This invention relates to an improvement in tools .for threading and cutting pipes.

The invention will first be described, and. then pointed out in the claims.

In the accompanying drawings, illustrating the invention, Figure 1 is a horizontal longif tudinal sectional view showing the tool ap: plied on a'pipe ready to operate. Fig. 2 is 'a vertical longitudinal sectional view of the tool and shows by dotted lines how the head separates and may be swung open to admit a die or a pipe. Fig. 3 is-a rear end view'of one of the die-halves. Fig. 4: shows a modified form of threadingedie for threading only one of the cut ends-of a pipe. Fig. 5 is a view showing a pipe that has been cut into two parts and both parts threaded at the point of separation.

Fig. 6 is a modification of the cutting and threading die. I

Referringto the drawings, Figs. 1 and 2, A designates an oblong'box or head closed at each side by plates 1) and having a chamber. B, which contains thethread-cutting die 0 G and pipe-cutting disk D. An opening I) is made through its side plates forinsertion .of the pipe Th-which is, to be cutand threaded. The said head is made in two halves-or two sections jointed together by a hinge e, so as toopen andclose together and admit the pipe ora die, and provided with a lock or latch 'e" to holdthe twosections closed when the pipe or die is inserted. 1

The thread=cutting die may be of any size to suit difiterent sizes of pipes, and is formed of.

two halves or partsO 0, one of which-O has a slot f through it for the insertion of acutting di'sk D, hereinafter described. This half of the die is stationary within the chamber, resting against shoulders g, while the othe'r die-half G has on its reara socket 7 A rod;

[F has screw-threads awhich fit in and pass through one end of the head,.a'nd this rod is provided at its endwithinthe chamber B with a swivel head or ball, (not shown,) which connectswith the socket h on-the half-die 0.

from the pipe.

of the die.

the edge of the cutting-disk D into theside Serial Ito. 542,916. (No model.)

By this construction the turning of the rod F will cause the half-die C to move forward toward'the pipe? or move back, according to the direction the rod is turned. The two halves G O of the threading-die thus take close about the pipe. Another-rod G, similar to the rod F, passes through the opposite end of the head, and its end in the chamber B has a ball or head j, on which the head D of the cutting-disk D is mounted. The cutting-disk takes into. the slot f in the stationary half of the threading-die. It will thus be seen that by turning the rod G the cutting-disk may be advanced against the pipe P or mo vedback The two rods F G at their outer ends should have suitable handles (not shown inthedraw ings) to facilitate their turning, and also to serve as hand-grasps when revolving the tool about a pipe P, which latter should be held 7 fast by the pipe-tongs or other means to p'reventit from turning. i

To operate this toolthe lock device or latch (5' should be loosened or opened to allow the two hinged parts of the head A to turn on their hinge e, as indicated in broken lines in Fig. 2. The cutting-disk'D- and the half-die O are both retracted by turning the rods G and F, respectively. The tool is now ready to be set astride of a pipe P, and then the two hinged parts'of the head are brought together and the lock device or latch e". secured. The half-die O is thenmoved forward until the pipe is @gripped. between the two halves O C The rod G is then turned. to force of the pipeP. Then the entire tool is revolved around the pipe. operation the pipe is partly cut through, but not entirely. The cutting-disk is then retracted, and the rod F turned to slightly force the thread-cutters-Ic into the side of thepipe. The tool is then turned backwardiand forward about a quarter-turn or a little more on the pipe in the usual manner for thread-cutting, while the rod F at the same time is 00- I casionallyturned slightlyto force the threadcutters still'farther'into the side of the pipe.

-When the thread has been cut, the tool may be removed from the pipe and the latter read ily brokeninto' two parts'wher'e-the disk D made'its cut.

By this revolving otoo ' to cut the pipe into The modification v a style of threading-diein section, which will cut a thread only on one of the cut ends of the pipe.

The modification section of the two parts of a thread-cutting die and each part at the center of the line of thread-cutters 7c is provided with avblade D two parts. In this instance the blades havea slight pitch like the thread-cutters 7. but project relatively longer than the latter. The line of out made by these blades D will be spiral and parallel with the line of cut made by the thread-cutters It. By this modification of. blade a separate revoluble disk-cutter is dispensed with.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A pipe threader and cutter having in combination a head made in two parts which shown in Fig. 4 shows a are hinged together at the center;

in two parts shown in Fig. 6 shows a in the said head; and a cutter to cut the pipe and acting in cooperation with the thread-cutter. I

2. A pipe threader and cutter having in combination a head made in two parts which are hinged together at the center; a threadcutting die made in two halves and confined in the said head; a screw rod, F, to operate or move one of the halves of the thread-cutting die; a cutting disk to out the pipe and said'disk working in a slot in one of the halves of the thread-cutting die; and a screw rod, G, to move the said cutting disk.

In testimony whereof I aflix my signature the presence of two witnesses.

JOSEPH J. ODONOHUE. Witnesses: it

CHARLES B. MANN, J r., THOS. C. BAILE t 

